As the midterms approach, three swing-state Democratic Senators are in danger of losing their respective races, according to new polling from Data for Progress. In Arizona, Democratic Sen. Mark Kelly is barely holding onto a 1% lead over Republican candidate Blake Masters, with 48% of respondents saying they would vote for him in the midterms; Masters polled just behind Kelly at 47%, according to Data for Progress. (RELATED: Republicans Are Turning A Massive Swing State Solidly Red) In Georgia, Democratic Sen. Raphael Warnock is tied 46% to 46% with Republican candidate and former football star Herschel Walker, the poll showed....