DENVER BUSINESS JOURNAL - The presidential election is only one of the key races on the ballot this year. Democrats have a chance to retake the U.S. Senate and need to pick up four seats to wrest control if Hillary Clinton wins (a Vice President Tim Kaine would break a tie vote for control of the chamber) and five if Donald Trump prevails. Of the 34 seats in which voters will elect a senator, 24 are controlled by Republicans, so they are on the defensive.
Rep. Ann Kirkpatrick is challenging longtime incumbent Sen. John McCain, who was the Republican presidential nominee in 2008. The state’s growing Latino population could flip this seat.
After initially swearing he would not run again, incumbent U.S. Sen. Marco Rubio got back into the race recently after losing his presidential bid. He will face Democratic U.S. Rep. Patrick Murphy.
Incumbent U.S. Sen. Mark Kirk may be the most endangered Republican up for re-election this year in this traditionally Democratic state. He faces U.S. Rep. Tammy Duckworth, a disabled war veteran whose district includes many of Chicago’s suburbs.