DENVER - Republicans are running strong in this year's House and Senate races. But that strength could turn into weakness in the next presidential election by stalling the changes advocated after the GOP's defeat in the 2012 White House campaign.
Republicans' search for a winning national strategy by appealing to younger, nonwhite voters is sometimes ignored by staunchly conservative lawmakers coasting toward another re-election.
In Colorado's 4th Congressional District, for example, candidates say they oppose gay marriage and object to citizenship for people now living in the country illegally.
But many strategists say aggressive stands against same-sex marriage and an immigration overhaul are among the issues hurting Republicans in presidential campaigns.
Optimism for the fall elections makes looking past the GOP's losses in nearly all of the last six presidential elections easy.