On Friday, U.S. National Security Advisor John Bolton said the U.S. has invited Russian President Vladimir Putin to Washington.<br />The U.S is returning to an idea that was put on hold in July amid anger in the U.S. over the prospect of such a summit.<br />---We have invited President Putin to Washington.---<br />Reuters reports Bolton revealed the news conference during a visit to ex-Soviet Georgia.<br />The announcement comes days after meeting Putin and senior security officials in Moscow. <br />