Microsoft said Tuesday it has uncovered new Russian hacking attempts targeting U.S. political groups ahead of the midterm elections.The company said that a hacking group tied to the Russian government created fake internet domains that appeared to spoof two American conservative organizations: the Hudson Institute and the International Republican Institute. Three other fake domains were designed to look as if they belonged to the U.S. Senate.Microsoft didn’t offer any further description of the fake sites.The revelation came just weeks after a similar Microsoft discovery led Sen. Claire McCaskill, a Missouri Democrat who is running for re-election, to reveal that Russian...