The Trump administration's plan to fire 90% of the staff at the Consumer Financial Protection Bureau has raised constitutional questions about whether courts can decide whether a president is taking "care that the Laws be faithfully executed."

The JPMorgan Chase CEO also sounded off on regulatory requirements, expressing optimism that capital rules will be scaled back.

Shelia Bair, who chaired the Federal Deposit Insurance Corp. from 2006 to 2011, said that while post-crisis reforms may have overregulated banks, the current deregulatory swing could undermine important protections and lead to another banking crisis.

Sen. John Thune, R-S.D., filed for cloture and filled the amendment tree on the stablecoin bill, effectively closing the path for the credit card legislation offered by Sens. Dick Durbin, D-Ill., and Roger Marshall, R-Kan., that would address credit card swipe fees.

Cara Petersen, the Consumer Financial Protection Bureau's top enforcement official, said the Trump administration has "no intention to enforce the law in any meaningful way."

Regulators' decision to lift a seven-year-old cap on the size of the megabank's balance sheet will produce benefits over the long haul, but it won't result in any sudden gains, according to CFO Michael Santomassimo.