WILMINGTON, Del. (AP) — A difficult political atmosphere for President Joe Biden may have become even more treacherous with the acquittal of Kyle Rittenhouse. Biden was already facing sliding poll numbers with an electorate worn down by the coronavirus pandemic and increasing inflation. Now, the president finds himself caught between outraged Democrats — some of whom were already stewing over Biden’s inability to land police reform and voting rights legislation — and Republicans looking to use the Rittenhouse case to exploit the national divide over matters of grievance and race. The acquittal of Rittenhouse has touched off new conversations about racial justice, vigilantism and policing in America. The Illinois teen armed himself with an AR-15-style semi-automatic rifle during an August 2020 protest in Kenosha, Wisconsin, days after the shooting of a Black man by a white police officer. He said he came to the small city to help protect a car lot from vandals and provide medical aid.