Maine, Kansas Senate races neck and neck as Democrats lead in Texas, Michigan, poll shows

High-profile races that will determine which party controls the Senate for the next two years are extremely tight, according to a new CNN poll, as Maine and Kansas remain close and Democrats extended their leads in Texas and Michigan.Democrats, who are widely projected to win a majority in the House of Representatives, need to flip four Senate seats from red to blue in order to gain a 51-seat majority, protecting their majority from the vice presidential tiebreaker.In Maine, Sen.Susan Collins, R-Maine, is the only Republican incumbent running in a state that went for Kamala Harris in 2024.FOX NEWS POLL: NAIL-BITER IN MAINE SENATE RACECollins' Democratic challenger is Troy Jackson, the former president of the state Senate who jumped into the race as a replacement for the previous nominee, scandal-plagued Graham Platner.Former Maine Senate President Troy Jackson, left, is on a glidepath to replace former candidate Graham Platner as the Democratic Party's Senate nominee in Maine and face off in the midterm elections against longtime Republican Sen.

Susan Collins.(Ryan Murphy/Getty Images; Anna Moneymaker/Getty Images)The race has no clear frontrunner, according to the CNN poll, though Jackson holds a marginal lead.COLLINS INSISTS SOCIALIST RIVAL WON'T BEAT HER AS MAINE'S MONEY MACHINE: 'YOU'LL LOSE BIG TIME'Forty-nine percent of respondents told the outlet's pollsters they favored Jackson, compared to 45% for Collins.

While Jackson is slightly ahead, at least 12.5% of voters say they could still change their minds.Respondents tied Collins to her party less than any other Republican running for Senate in the nation, with 46% of respondents saying they believe she would choose her constituents over the Republican Party.DAVID MARCUS: THE FUTURE OF THE GOP IN NEW ENGLAND RIDES ON MAINE’S SENATE VOTESen.Susan Collins directs a question to Troy Jackson during a debate at Husson University in Bangor on Thursday.

(Gregory Rec/Portland Press Herald via Getty Images)Collins...