“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 McCainFlake GOP challenger: John McCain should resign The Hill's 12:30 Report Armed Services leaders appoint strategy panel members 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 KerrySenators who have felt McCain's wrath talk of their respect for him Dems see huge field emerging to take on Trump Budowsky: Dems need council of war MORE (D), Rep. Edward MarkeyEd MarkeyOPINION | Shailene Woodley: US should run on renewable energy by 2050 Dems urge 'transparent and inclusive' nuke policy review Senate confirms former Boeing VP as deputy Defense secretary 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 WarrenOPINION | Hey Dems, Russia won't define 2018, so why not fix your party's problems instead? The private alternative to the National Flood Insurance Program  Warren: 'I'd be very glad' for Sessions to quit 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 ObamaBudowsky: Dems need council of war The Hill's 12:30 Report Michelle Obama gets standing ovation at ESPYs MORE — are campaigning for the candidate.