The Senate voted an overwhelming 84-15 to confirm Janet Yellen as the first woman to lead the U.S. Treasury earlier this week, setting her quickly to work with Congress on coronavirus relief, reviewing U.S. sanctions policy and strengthening financial regulation.

All opposition was from Republicans, several of whom have expressed concerns about President Joe Biden's proposed $1.9 trillion coronavirus aid plan, tax hikes and other spending initiatives.

"Secretary Yellen's confirmation shatters another glass ceiling," Democratic Senator Dianne Feinstein said in a statement. "In a field dominated by men, it's refreshing to finally see a woman leading the Treasury Department."