President Donald Trump on Wednesday signed the repeal of a banking rule that would have allowed consumers to join together to sue their bank or credit card company to resolve financial disputes. The president signed the measure at the White House in private. Journalists were not present to witness the signing.The Republican-led Senate narrowly voted to repeal the Consumer Financial Protection Bureau’s regulation, which the banking industry had been seeking to roll back. The Trump administration and Republicans have pushed to undo regulations they say harm the free market and lead to frivolous lawsuits. …