Cap is dead. He's out of the running. Really? Yep. Marvel did this run called Civil War. The government passed a Superhero Registration Act, and it split the heroes into two factions. Iron Man led the pro-gov, pro reg faction. Captain America refused to help and ultimately became the leader of the opposition group. A lot of stuff went down, including the death of a marginal superhero at the hands of Iron Man's forces. Anyway, blah blah blah, the two sides eventually meet in a titanic clash, and as Cap is about to ice Iron Man, he looks around and realizes this Super War is hurting the common man, so he stands down. He was then arrested (everyone else got amnesty), and after the court hearing, he was assassinated. I think his sidekick might be posing as him now, but Steve Rogers, the real Cap, is gonzo. They'll probably drum up a way to bring him back in a few years.