Congresswoman Maxine Waters (D-Calif.), a frequent critic of President Trump, said he would be doing the United States "a favor" by resigning. "Trump confessed to Reuters that being President is more challenging than he anticipated. He should do himself & the country a favor & resign," Waters tweeted Monday evening. (TWEET-AT-LINK) Waters, 78, has repeatedly accused Trump of working in collusion with the Russians, and is not legitimately the president because Russian leader Vladimir Putin put his thumb on the electoral scales....