WASHINGTON (AP) -- President Barack Obama will assume some responsibility for voters' frustrations that boiled up in elections that cost Democrats dearly.

A person familiar with the president's thinking says Obama at a White House news conference Wednesday won't be defiant, and will address the message sent by voters. The White House sees that message as a call for lawmakers to put partisanship aside and solve the problems facing the country.

The person spoke on the condition of anonymity in order to speak ahead of the president.

Republicans scored sweeping victories in Tuesday's midterm elections to take a commanding majority in the House and make significant gains in the Senate.