Political turmoil the climax of Brexit psychodrama, says Plaid
urrent turmoil in Westminster is the climax of a "six-year long Brexit psychodrama", Plaid Cymru's leader in Westminster says.
Liz Saville Roberts MP said "lies" were at the root of the crisis and have created a "vacuum of accountability".
She called for the UK to re-join the single market and customs union. She accused Labour of remaining committed to retaining "massive trade barriers".
Plaid is holding its annual conference in Llandudno.
rty called for a general election after Liz Truss quit on Thursday, triggering a leadership contest.
On Friday Mr Price said Wales becoming independent would get "rid" of the Conservatives "forever".
Plaid backed Remain in the 2016 referendum, and had later called for a second referendum.
Wales voted to leave in the poll six years ago, when it voted 52% to quit the EU versus 47.5%.
Ms Saville-Roberts, who is Plaid's MP for Dwyfor Meirionnydd, has tabled a Westminster bill to outlaw lying in politics.
She said: "What's at the root of Westminster chaos? Lies. Brexit lies split the Tory party, who then forced communities and families to turn against each other."
MP claimed Brexit had "broken the link between evidence and government policy". 
"That original delusion from 2016 has now led to the downfall of four prime ministers," she said.
"That delusion explains that bonkers mini-budget. Truss could name no reputable economist who supported her plans - but in our post-Brexit, post-truth public discourse - evidence is for swots. All you need in this brave new world is blind faith."
Criticising Labour, she said the party "want to make Brexit work - but are wholeheartedly committed to retaining massive trade barriers that stop Welsh businesses from trading freely with our nearest neighbours".
Party delegates passed a motion calling for research into the impact of a four-day working week.
Meanwhile conference called for a new house building company to create jobs, and for support for first time buyers.