Reuters) - U.S. stock futures took a breather in after-hours trade on Wednesday, as ballots were tallied in several states that should decide whether Democratic challenger Joe Biden unseats President Donald Trump in an election that remains too close to call.S&P emini futures EScv1 were up 0.25% on the heels of a 2.3% rally in the S&P 500 .SPX on Wednesday, catalyzed by the prospect of gridlock in Congress after Democrats appeared to have failed to take control of the U.S. Senate. That raised optimism that disruptive policy changes would be hard to implement regardless of the winner in the presidential contest. By early Asian trade the dollar index =USD had ceded its gains and was up a tad at 93.53 after touching a one-month high of 94.308 during the U.S. day. U.S. 10-year Treasury note futures TYc1 extended a huge gain after Treasury yields fell hard Wednesday.