Secretary of Transportation Ray LaHood said on Tuesday he planned to resign, marking the latest departure from President Barack Obama's Cabinet.
"I have let President Obama know that I will not serve a second term as secretary of the U.S. Department of Transportation," LaHood said in a statement.
LaHood, a Republican and former Illinois congressman, brought a bipartisan element to the Democratic president's team. LaHood said he would stay on until his successor is confirmed by the Senate.
Obama has been under pressure to bring more women and minorities into his Cabinet.