Former Plaid Cymru leader Leanne Wood is hoping that Boris Johnson's resignation will "kickstart" a shift in how "society values integrity and accountability in the political world.".
After learning whether he had lied to parliament about lockdown-breaking parties in Downing Street, he resigned as an MP on Friday.
The ex-prime minister alleged that the inquiry was intended to "drive me out.".
David TC Davies, the Welsh Secretary, expressed his regret at Mr. Johnson's departure.
As far as I'm concerned, Boris made the right decisions regarding Ukraine, the vaccine program, and Brexit, according to the Conservative Monmouth MP.
Mr. Johnson admitted intentionally misleading the legislature while denying it in testimony he gave to the Privileges Committee in March.
During gatherings in Downing Street during Covid lockdowns, he claimed that social distance had not been "perfect.".
He claimed that they were permitted because they were "essential" work events.
Following his resignation, Mr. Johnson, who served as prime minister from 2019 to 2022, released the following statement: "They have still not produced a shred of evidence that I intentionally or recklessly misled the Commons. ".
He characterized the report as "riddled with inaccuracies and reeks of prejudice.".
I make no apologies for saying that I really like the guy and I'm sorry he's gone, Mr. Davies said on BBC Radio 4's Any Questions program. " .
Leanne Wood, the leader of Plaid Cymru from 2012 to 2018, and other Welsh politicians also voiced their opinions.
In response to Mr. Johnson's and the former culture secretary Nadine Dorries' resignations, she stated: "Would love today's resignations to kickstart a sea-change in the way in which society values integrity and accountability in the political world.
"This is not the only option.
"Continually hopeful. ".
Other Welsh politicians spoke out on social media, such as Chris Elmore, a Labour MP for Ogmore, who claimed: "To the very end, he couldn't be honest. Forced out? More like discovered. ".
"Boris Johnson isn't fit to run a bath, much less the country," said Ruth Jones, a Labour MP for Newport West.
"I stated as much during PMQs in April of last year that his departure from the House of Commons was long overdue. ".
"Dorries and Boris, a shameful and shameless double act leave the stage," declared Plaid Cymru MP for Arfon Hywel Williams.
"Two pantomime baddies who delighted in causing mayhem in our darkest hours.
. "