WASHINGTON (AP) — Ethical concerns are casting a shadow over President Joe Biden as he seeks reelection amid investigations into his son Hunter and a presidential impeachment inquiry. A poll shows that 35% of U.S. adults believe the Democratic president himself has done something illegal. An additional 33% say they think the president behaved unethically, but not illegally. And 30% say Joe Biden did nothing wrong. The results of the survey by The Associated Press-NORC Center for Public Affairs Research reflect both a vast political divide and skepticism about the morality of government leaders.