Donald Trump. (Reuters)

Some have argued that Mitt Romney's extended courtship of Donald Trump was a sign of why the Republican presidential candidate lost to President Obama. The media mogul himself has another theory. 

Romney "had a crazy policy of self deportation which was maniacal,” Trump told “It sounded as bad as it was, and he lost all of the Latino vote ... He lost the Asian vote. He lost everybody who is inspired to come into this country.”

Romney said during the Republican primary that illegal immigrants should "self-deport," meaning that if the government made it impossible for them to find jobs or obtain driver’s licenses, they would leave the country of their own accord.

The Republican candidate won just 27 percent of the Hispanic vote — less than John McCain in 2008 and far less than Bush’s 40 percent support level for his 2004 reelection. Romney also performed poorly among Asian Americans, winning only 23 percent of that vote.