Yet the pausing of donations announced by many companies – including Marriott, American Express, AT&T, JPMorgan Chase, Dow, American Airlines, and others – was unlikely to deliver a serious blow to Republicans in Congress who voted to overturn Mr. Biden’s win.“These are symbolic pledges,” said Sheila Krumholz, executive director of the Center for Responsive Politics, a nonpartisan group that traces the role money plays in politics. “This is just one source of revenue and for some it’s vanishingly small, particularly in the Senate.”