Here's a short rundown of other White House scandals (or "scandals&quot that have led Republicans to call for Obama's impeachment (and for the full list, Wikipedia has you covered):
In 2010, Rep. Darrell Issa said Obama could face impeachment after Rep. Joe Sestak claimed the White House offered him a job to prevent him from challenging Arlen Specter in a primary.

In 2011, Rep. Michael Burgess told a local Tea Party group that Obama's impeachment "needs to happen," without specifying why.

In 2012, Sen. Jon Kyl said "impeachment is always a possibility" over Obama's immigration policies.

Last May, Rep. Jason Chaffetz said he was not pushing for impeachment, but didn't rule out that Obama could be kicked out of office over the Benghazi affair.

In 2013, Sen. Tom Coburn told the audience at a town-hall meeting that Obama was getting "perilously close" to qualifying for impeachment. Coburn's fellow Oklahoma senator, James Inhofe, agreed.

In 2013, Rep. Kerry Bentivolio said his legislative dream would be to impeach Obama.

During the debt-ceiling crisis, Rep. Louie Gohmert told an interviewer that defaulting on the U.S. government's debt would be an "impeachable offense."

While Sen. Ted Cruz has demurred on calls for Obama's impeachment in the past, but has called it "a good question" and "a question for the House to assess."