The Biden campaign’s effort to raise questions about Donald J. Trump’s ability to be president has boomeranged into a referendum on the president’s own competence.

Since President Joe Biden’s disastrous debate performance, a flurry of Democrats have been openly questioning if it’s time to replace their party’s nominee. However, Republicans are acknowledging a new opponent could open up a new set of challenges for former President Donald Trump after he has spent months painting Biden as incapable of leading.

The ruling causes enormous confusion over the nation’s most fundamental laws and principles, with little guidance on how courts and juries should apply it.

Donald Trump’s lawyers invoked the Supreme Court’s immunity ruling in a filing on Friday afternoon in his federal classified documents case, asking U.S.