Heller, the Republican establishment’s top choice to replace Ensign, wasted little time declaring his candidacy once Ensign said he would not run. Democrats later landed a top recruit of their own, Rep. Shelley Berkley (D). Facing a very limited map, Nevada is one of the Democrats top opportunities to pick up a GOP-held seat this cycle.

A Heller-Berkley matchup, intriguing for many reasons, was initially also unique because it would have meant two Members of the House running against each other. Now, Heller will run as the incumbent and his votes in the Senate will be watched closely. Heller has taken conservative votes in the House recently, positioning himself to the right on immigration and supporting the House Republicans’ budget plan.