The Cook Political Report changed the Pennsylvania Senate race from “lean Democrat” to “toss up” due to tightening competition, as noted by editor Jessica Taylor. Polls indicate that Sen. Bob Casey’s, D, lead has decreased from 6.1% to 4.1% over the past month, according to FiveThirtyEight’s polling average.
Both parties’ internal polls show Casey leading by just one or two percent, making the race too close to call, as stated in the update. Casey has recently promoted his ties to Trump in an advertisement as well.