The political landscape could be about to shift in Washington, D.C.

In the final stretch to the Massachusetts special Senate election, both the Democrat and Republican candidates added a little star power to energize their base.

President Obama made a last-minute trip to campaign for Democrat Martha Coakley. A special election will be held Tuesday to fill the seat held by the late Sen. Ted Kennedy.

"If you were fired up in the last election, I need you more fired up in this election," President Obama said at a rally.

Click play to watch John Jessup's report followed by analysis from CBN News White House Correspondent David Brody.

Coakley is hoping to ride the coat tails of the president and put distance between her and rival Scott Brown, who's running a populist campaign.

"Just because you're driving around in Massachusetts in a truck doesn't mean you're headed in the right direction," Coakley said.

Brown, flanked by his own celebrity supporters, fired this shot back at Coakley.

"We do not want a senator whose only question on health care is to ask Harry Reid," he said.

Brown has erased Coakley's lead and some polls show him pulling off an upset win-- a sign that his promise to vote against the Senate's health care bill has drawn appeal.

"The polling is showing that the people don't want this health care," one supporter said. "They do want reform but they don't want a whole new package. And Scott Brown represents that 41st vote that can sink this health care bill."

"Whether Coakley wins or loses the message is the same, health care, this health care package is death for candidates," conservative commentator Tucker Carlson said.

Coakley says her campaign will win though she acknowledges it will be a tough fight. That, in itself, is a major feat for Brown.

She's a Democrat in what's described as the bluest state, where registered Democrats outnumber republicans 3-1.

The GOP has not won a Massachusetts U.S. Senate race in 38 years.