The dinner is part of Obama’s ongoing efforts to improve the lines of communication with Congress and lay the groundwork for future compromise.
Last week, Obama shared a meal with a dozen Senate Democrats at a hotel near the White House, discussing immigration, gun control, the budget and other second-term priorities.
He’s hosted two similar dinners for Senate Republicans in recent weeks. Obama has also traveled to Capitol Hill to meet with lawmakers from both parties.
A spokeswoman for Sen. Kirsten Gillibrand of New York says all 20 female senators were invited. She says Gillibrand requested the dinner in October while traveling with Obama to survey the damage from Superstorm Sandy.