A former MA governor is officially challenging President Trump for the 2020 Republican nomination-and it's not Mitt Romney.
Mr Weld has accused Mr Trump of leaving the nation in "grave peril" and has said his "priorities are skewed toward promotion of himself rather than for the good of the country".
Bill Weld, 73, a former governor of MA governor, announced that he would be making the rare move against an incumbent president by calling on "patriotic men and women across our great nation to stand and plant a flag".
"In these times of great political strife, when both major parties are entrenched in their "win at all cost" battles, the voices of the American people are being ignored and our nation is suffering", Weld said in statement. Today Weld has made it official.
He endorsed the Democratic presidential candidate Barack Obama over Republican nominee John McCain, in 2008 - but late said he regretted it.
Pete Buttigieg has joined the race to stop Donald Trump from being re-elected.
Weld had been touring many states with an exploratory committee. "Any effort to challenge the president's nomination is bound to go absolutely nowhere".
As for his actual policy positions, Weld's website is little more than an ask for money, but a video released by his campaign makes it clear that his primary qualification is not being Donald Trump.
Trump's campaign has taken extraordinary steps in cementing control over the RNC and the broader nomination process as it seeks to minimize the risk of any potential challenger doing the same to the president.
Weld is considered fiscally conservative but socially liberal.
In his announcement message, Weld noted his appointment as a USA attorney by Ronald Reagan, calling himself a "Reagan Republican".
Weld, 73, who served two terms as governor, from 1991-1997, enters as a long-shot candidate against an incumbent president who has remained popular within his party.
Bill Weld is a businessman and attorney who was Governor of MA from 1991 to 1997.
Next year Republican and Democratic voters will hold elections known as primaries to pick their respective party's standard bearer for the November 2020 presidential election.