New polling showed Vice President Kamala Harris with a widening margin over former President Donald Trump in a Reuters/Ipsos poll published Thursday. It found Harris leads Trump 45% to 41%. Among registered voters, the 4 percentage-point lead was more significant than the 1-point lead Harris had over Trump in the outfit’s last poll in July. The poll had a 2% margin of error. Over in polling guru Nate Sliver’s latest models, Harris didn’t fare as well. “Although we wouldn’t advise worrying too much about the difference between a 52/48 race one way versus a 48/52 race the other way —...