More than one-third of U.S. adults now believe that President Joe Biden wasn’t legitimately elected, a new survey shows, marking an uptick from December 2021.The Washington Post-University of Maryland poll, conducted last month, found that 36 percent of respondents believe that President Biden’s election was illegitimate—a 7-point increase from two years ago.Comparatively, 62 percent said he was legitimately elected, down from 69 percent in 2021.Republicans showed the largest decrease in belief in the president’s validity, dropping from 39 percent to 31 percent. Independents also saw a 6-point drop, from 72 percent to 66 percent, while Democrats saw a slight dip,...