Buck, Bennet lead in U.S. Senate primary races

Ken Buck holds a large lead over Republican primary opponent Jane Norton in the race for Colorado's U.S. Senate seat, a Denver Post/9News poll shows.

Buck, the Weld County prosecutor buoyed by outside TV buys and Tea Party sentiment, leads former Lt. Gov. Norton 53 percent to 37 percent among likely Republican primary voters, according to poll results.

Democratic Sen. Michael Bennet appears to be riding rich TV spending and incumbent media attention, staying well ahead of former House Speaker Andrew Romanoff's insurgent campaign. Bennet beats Romanoff 53 percent to 36 percent among likely voters. The primaries are Aug. 10. - Read More -