UK Labour Party
Tory Susan Hall warned "time is running out" for her to close the gap.
The doctored clip came despite Rishi Sunak's previous vow to lead a government of "integrity".
The Metropolitan Police confirmed 12 people had been arrested over the protest.
Rishi Sunak's attempts to turn around his party's fortunes have failed.
Rishi Sunak is set to lead his party to catastrophe.
The prime minister is rumoured to be eyeing up a summer poll.
The deputy Labour leader said she will publish the last 15 years of her tax returns if senior Tories do the same.
The same image is being used on campaign material across the country.
The Conservatives are five times more likely to be corrected than Labour overall, the research concluded.
Labour frontbencher quickly turned criticism from GB News into a slight against the government.