The Democratic National Committee jabbed at the Republican National Committee Monday for calling on the Justice Department to investigate whether President Obama had used the White House to record a political advertisement. The RNC requested an investigation after reports surfaced that Obama may have used government property to film a political advertisement. The spot is an indirect request by the president for people to contribute $5 or more for the chance of “Dinner with Barack and Joe [Biden].” “This is a disgraceful, desperate and politically-motivated attempt at getting headlines by a Republican Party awash in special interest cash which is...