A new Rasmussen poll out Tuesday in the Colorado Senate race shows Republicans Ken Buck and Jane Norton both leading Sen. Michael Bennet (D-Colo.) in hypothetical general election match-ups. 

The poll has Buck ahead of Bennet 48 percent to 39 percent in a general election match-up. Former Lt. Gov. Jane Norton leads Bennet 47 percent to 40 percent. 

With former House Speaker Andrew Romanoff as the Democratic nominee, Buck leads 47 percent to 42 percent. Norton would lead Romanoff by just two percent — 44 to 42. 

Romanoff is challenging Bennet in the Democratic primary, while Buck and Norton are locked in an increasingly negative Republican primary. The primary is Aug. 10.  

Buck also released his second-quarter fundraising numbers Tuesday and his campaign is touting its cash-on-hand number. While Norton out-raised Buck for the quarter, Buck's campaign reported more cash on hand. Norton raised $900,000 during the quarter and reported $600,000 on hand. Buck raised $417,000 during the second quarter, but has $664,000 cash on hand.