Tesco, Sainsbury's, Amazon and Greggs are among those who have written to the chancellor.
One of them testified he had sex with an underage girl, the attorney told ABC News.
Caroline Kennedy's remarks against RFK Jr. are just the latest from his family.
Thousands are expected to protest against the chancellor's Budget.
The former prime minister said she wanted to see a UK version of the president-elect's Make America Great Again movement.
The Russian president is attacking energy infrastructure and killing civilians, No.10 says.