“I’m my own person and I’m going to win this election with or without D.C.," he said at a press conference on Monday, according to the Boston Globe.

Sen. John McCainJohn Sidney McCainGOP moves to cut debate time for Trump nominees GOP advances proposal to change Senate rules Julian Castro predicts Arizona will 'go blue' for Senate, presidential election MORE (R-Ariz.) is scheduled to appear at a fundraiser for the Gomez Victory Fund later this month, the Globe reported. And a PAC affiliated with former GOP presidential nominee Newt Gingrich contributed $5,000 to Gomez's campaign this week.

The National Republican Senatorial Committee, too, has launched Web videos hammering Gomez's Democratic opponent in the special election to replace Secretary of State John KerryJohn Forbes KerryPrimary care is a home run for both sides of the aisle Mellman: Memories may be beautiful, yet… Lieberman: Senate should fulfill constitutional duty, confirm Mike Pompeo MORE (D), Rep. Edward MarkeyEdward (Ed) John MarkeyDem senators demand Trump explain ties to Koch brothers Overnight Cybersecurity: Senators want info on 'stingray' surveillance in DC | Bills to secure energy infrastructure advance | GOP lawmaker offers cyber deterrence bill Overnight Tech: Alleged robocall kingpin testifies before Congress | What lawmakers learned | Push for new robocall rules | Facebook changes privacy settings ahead of new data law | Time Warner CEO defends AT&T merger at trial MORE.

But Gomez will need to convince Massachusetts voters that he can serve independently of the national GOP, as President Obama remains popular in the state after winning Massachusetts with more than 60 percent of the vote in 2012.

And tying the national GOP around former Sen. Scott Brown's (R) neck helped Sen. Elizabeth WarrenElizabeth Ann WarrenGillibrand unveils bill to offer banking services at post offices Warren challenger sues to keep displaying 'fake Indian' signs Dems demand end to waivers used to pay people with disabilities below minimum wage MORE (D) defeat him in 2012.

Indeed, Gingrich himself advised Gomez in the Boston Herald to "run as a Navy SEAL and not as a Republican candidate."

Part of Gomez's main pitch to voters is that he's an independent outsider running against a creature of Washington who has served nearly four decades in Congress. Help from Republicans in Washington could undermine that narrative.

Gingrich admitted that support from "someone like me is a two-edged sword," and that he believes the Gomez campaign would "rather Markey get all the Washington money."

Markey doesn't face a similar conundrum in the blue-leaning state, and a number of big-name Massachusetts and national Democrats — including Warren and first lady Michelle ObamaMichelle LeVaughn Robinson ObamaBudowsky: End the DNC malpractice George H.W. Bush in intensive care Michelle Obama congratulates duke and duchess of Cambridge on royal baby MORE — are campaigning for the candidate.