With Democrats currently holding a 21-14 lead over the GOP, here are our choices in five of the most contested races. Colorado Republicans are once again trying to break the lock Democrats have on the state Senate. Even if the GOP falls short of picking up the four seats necessary to reverse the current 21-14 Democratic majority, gaining a seat or two would give Republicans a stronger voice in the statehouse, which could prove beneficial for bipartisan policy if a Democrat is again elected governor. To help our readers make sense of some of the races, we're endorsing candidates in...