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. MaineIn Maine, Sen. Susan Collins, R-Maine, is the only Republican incumbent running in a state that went for Kamala Harris in 2024....