The National Republican Senatorial Committee on Monday sought to expand its campaign against Majority Leader Harry Reid (D-Nev.) for his use of racially insensitive remarks to other Senate Democrats up for re-election this fall.

The NRSC on Monday went after Democratic Sens. Mary Landrieu (La.), Russ Feingold (Wis.), Evan Bayh (Ind.) and Blanche Lincoln (Ark.) for not calling on Reid to resign as Majority Leader. Reid is under fire for referring to President Barack Obama in 2008 as “light-skinned— and for saying he has “no Negro dialect.—

“There is still no place for Sen. Reid’s racially charged commentary in today’s America, and [their] silence on her Senate Leader’s statements is deafening,— NRSC spokeswoman Amber Wilkerson Marchand said.

The campaign committee also accused the Senate Democrats of using a double standard when judging Reid’s actions, noting that all four were serving in the Senate in 2002 when then-Minority Leader Trent Lott (R-Miss.) was forced out of office after making racially sensitive comments.

For instance, in a release circulated to Louisiana press, the NRSC argues that, “It’s difficult to view Senator Landrieu’s silence as anything other than a clear double standard — especially in light of her own statements in 2002 that a Democratic leader ‘would not be allowed to keep their position’ if they made such a racially-charged statement.—

“There’s no doubt that Louisianans will see through the hypocrisy of Landrieu’s demand that Trent Lott step down as Majority Leader while she silently stands by Harry Reid’s pontification about President Obama’s ‘light skin’ and his lack of ‘negro dialect,’— the release said.

Meanwhile, the NRSC also continued to put pressure on Reid, demanding that the Majority Leader provide a full explanation of his words. Several prominent Republicans including NRSC Chairman John Cornyn (Texas) have suggested Reid give up his leadership job over his remarks.

“Americans deserve to know: What exactly did Harry Reid mean when he referred to the president’s skin color and said that he had ‘no Negro dialect?’ If these are the types of comments that Harry Reid is making behind closed doors, then it’s no wonder why he has worked so hard to keep his health care negotiations closed to the public,— NRSC spokesman Brian Walsh said.