Republicans pick up seat in West Virginia and block Florida challenge in race toward Senate majority

WASHINGTON (AP) — Republicans picked up a crucial win Tuesday in the race for the Senate majority, as Jim Justice easily notched the West Virginia seat to succeed retiring Sen. Joe Manchin, deadlocking the chamber in a 50-50 split, for now.

Justice, the state's governor who often appears with his English bulldog "Babydog," was widely expected to deliver for Republicans as they work to wrest control from Democrats. Republican Donald Trump is popular in the state, and Manchin , who left the Democratic Party to become an independent, declined to seek another term.

West Virginia is the first of several states where Democrats see their slim hold on the chamber at serious risk. In a 50-50 split, the majority goes to the party in the White House, because the vice president can cast tie-breaking votes. There are more races ahead.

With control of Congress at stake, the ever-tight contests for the House and Senate will determine which party holds the majority and the power to boost or block a president's agenda, or if the White House confronts a divided Capitol Hill .

In the end, just a handful of seats, or as little as one, could tip the balance in either chamber.

A late challenge to Republican Sen. Rick Scott of Florida by Democrat Debbie Mucarsel-Powell fizzled. Scott, who poured millions of dollars of his own wealth into the race, won reelection.

Polls are closing other states, including those that will send history-makers to the Senate.

Democrat Lisa Blunt Rochester won an open seat in Delaware to become the third Black woman ever elected to Senate.

She could be joined by another Black woman, Maryland Democrat Angela Alsobrooks, who is in a tight race with the state's Republican former governor, Larry Hogan. Never before have two Black women served together in the Senate at the same time.

And in New Jersey, Andy Kim became the first Korean-American elected to the Senate, defeating Republican businessman Curtis Bashaw. The seat opened when Bob Menendez resigned this year after his federal conviction on bribery charges.

The key contests are playing out alongside the first presidential election since the Jan. 6, 2021, attack on the Capitol , but also in unexpected corners of the country after what has been one of the most chaotic congressional sessions in modern times.

Voters said the economy and immigration were the top issues facing the country, but the future of democracy was also a leading motivator for many Americans casting ballots in the presidential election.

AP VoteCast, an expansive survey of more than 110,000 voters nationwide, found a country mired in negativity and desperate for change as Americans faced a stark choice between former President Donald Trump and Vice President Kamala Harris .

Congress plays a role in upholding the American tradition of peacefully transferring presidential power. Four years ago, Trump sent his mob of supporters to "fight like hell" at the Capitol, and many Republicans in Congress voted to block President Joe Biden's election. Congress will again be called upon to certify the results of the presidential election in 2025.

Top House races are focused in New York and California , where Democrats are trying to claw back some of the 10 or so seats where Republicans have made surprising gains in recent years with star lawmakers who helped deliver the party to power.

Other House races are scattered around the country in a sign of how narrow the field has become. Only a couple of dozen seats are being seriously challenged, with some of the most contentious in Maine, the "blue dot" around Omaha, Nebraska, and in Alaska.

Vote counting in some races could extend well past Tuesday.

"We're in striking distance in terms of taking back the House," House Democratic leader Hakeem Jeffries , who is in line to make history as the first Black speaker if his party wins control, told The Associated Press during a recent campaign swing through Southern California.

But House Speaker Mike Johnson , drawing closer to Trump, predicts Republicans will keep "and grow" the majority. He took over after Kevin McCarthy was booted from the speaker's office.

Billions of dollars have been spent by the parties, and outside groups, on the narrow battleground for both the 435-member House and 100-member Senate.

Republicans put the Senate Democrats, with just slim control of the chamber, on defense across a wide map in several states favorable to the GOP.

In Ohio, Trump-backed Republican Bernie Moreno, a Cleveland businessman, is seeking to unseat three-term Democratic Sen. Sherrod Brown. Some $400 million has been spent on the race.

One of the most-watched Senate races, in Montana, may be among the last to be decided. Democrat Jon Tester, a popular three-term senator and "dirt farmer" is in the fight of his political career against Trump-backed Tim Sheehy, a wealthy former NAVY Seal, who made derogatory comments about Native Americans, a key constituency in the Western state.

And across the "blue wall" battlegrounds of Pennsylvania, Michigan and Wisconsin, Republicans are depending on Trump as they try to unseat a trio of incumbent Democratic senators.

Outgoing Senate Republican leader Mitch McConnell has spent a career focused on seizing and keeping majority power, but other opportunities for Republicans are slipping into long shots.

In the Southwestern states, Arizona firebrand Republican Kari Lake has struggled against Democrat Ruben Gallego in the seat opened by Sen. Krysten Sinema's retirement. In Nevada, Democratic Sen. Jacky Rosen has been holding out against newcomer Sam Brown.

Democrats intensified their challenges to a pair of Republican senators — Ted Cruz of Texas and Scott in Florida — in states where reproductive rights have been a focus in the aftermath of the Supreme Court decision rolling back abortion access. Cruz faces Democrat Colin Allred, the Dallas-area congressman.

What started as a lackluster race for control of Congress was instantly transformed once Harris stepped in for Biden at the top of the ticket, energizing Democrats with massive fundraising and volunteers that lawmakers said reminded them of the Obama-era enthusiasm of 2008.

House candidate Sarah McBride , a state lawmaker from Delaware who is close to the Biden family, is poised to become the first openly transgender person in Congress.

Fallout from redistricting, when states redraw their maps for congressional districts, is also shifting the balance of power within the House, with Republicans set to gain several seats from Democrats in North Carolina and Democrats picking up a second Black-majority seat in Republican-heavy Alabama.

Lawmakers in the House face voters every two years, while senators serve longer six-year terms.

If the two chambers do in fact flip party control, as is possible, it would be rare.

Records show that if Democrats take the House and Republicans take the Senate, it would be the first time that the chambers of Congress have both flipped to opposing political parties.