Midterm elections live updates: Judge orders DOJ to halt threats to election workers

President Donald Trump heads to Chillicothe, Ohio, on Wednesday to rally with candidates, marking his third stop in the state since Labor Day as Republicans and Democrats continue to vie in increasingly acrimonious races for governor, Senate and House.

The visit comes as the Ohio governor's race continues to draw attention following the release of an ad by Republican candidate Vivek Ramaswamy featuring the estranged mother of Democratic candidate Amy Acton. Trump has praised the ad and indicated he believes Ramaswamy should keep it running despite bipartisan backlash.

Ohio is also home to a closely watched Senate race, in which Republican Sen. Jon Husted is facing a tough reelection bid against former Democratic Sen. Sherrod Brown. Trump has frequently brought up Husted at other rallies, sometimes commenting on his appearance.

Several House races in the state are also competitive, including in Ohio's 7th Congressional District. Embattled Republican Rep. Max Miller is seeking reelection while denying domestic abuse allegations made by his ex-wife, the daughter of Ohio Republican Sen. Bernie Moreno.

-ABC News' Oren Oppenheim

Republican Sen. Lisa Murkowski endorsed Democratic candidate Jonathon S. Kreiss-Tomkins in the Alaska governor's race, his campaign announced Tuesday.

"Our future is too important to be hamstrung by partisan divisions," Murkowski said in a statement. "Alaska needs a serious conversation about our fiscal future, as well as a focus on the cost of energy and growing our economy. I believe Jonathan is committed to working toward solutions that serve all Alaskans, regardless of party."

Murkowski has a history of opposing President Donald Trump and bucking her party.

Trump on Saturday called her the "Republicans' Worst Senator" and "a DISGRACE to Alaska and our Country" over her opposition to the Justice Department's lawsuit seeking to block the certification of the Alaska Senate race if Republican incumbent Sen. Dan Sullivan loses.

-ABC News' Emily Chang

President Donald Trump, on his way to a campaign event in Texas on Tuesday, signaled that he would work with Democrats if they regained some control in Congress after the midterms -- but cautioned that he has a "strong veto." He also said he will respect the results of the elections -- but notably added "if they’re honest."

Trump has repeatedly made unfounded claims that there was widespread voter fraud in past elections.

ABC News White House Correspondent Karen Travers asked Trump about his level of concern about GOP Senate candidate Ken Paxton’s chances in the competitive race against Democratic candidate James Talarico.

Trump left the door open to the possibility of Paxton’s loss, saying, "you never know -- it’s politics," but then claimed the Republican would do "very well."

-ABC News' Isabella Murray and Michelle Stoddart

President Donald Trump on Tuesday makes his fourth campaign season (since Labor Day) trip to Texas where he is set to hold two rallies in the state as he and Republicans make their closing arguments in battleground races.

With just one week before Election Day, Trump will attend rallies in Lubbock and Corpus Christi.

All eyes are on the Texas Senate race as Republican Ken Paxton and Democrat James Talarico remain locked in a neck-and-neck contest. Paxton confirmed he will attend and plans to deliver remarks at both rallies. Rep. Monica De La Cruz, who is in a toss-up race in the 15th Congressional District against Tejano musician Bobby Pulido, said she will also be in attendance.

Talarico will also speak at a rally in Lubbock, Texas, on Tuesday, according to a campaign advisory.

More than 20% of registered voters in Texas have voted early.

-ABC News' Hannah Demissie, Diana Paulsen and Emily Chang