cast doubt on

Justin Crump cast doubt on Putin's claim, telling the BBC that if "that claim were true, then Russia would have made it more clearly when the weapons were first supplied, and when they conducted successful and impactful operations against for example the Black Sea Fleet HQ in occupied Crimea".

We saw scathing text messages from Dame Moya Greene, the former head of Royal Mail, which cast doubt on Ms Vennells’ honesty.

MAGA-minded social media users were quick to cast doubt on whether the decision was even made by Trump himself and insist that Rubio was not yet a done deal.

Since losing the 2020 election, former President Donald Trump has cast doubt on the integrity of the election process, falsely claiming he lost the White House to President Biden because of voter fraud.

Trump has continued to cast doubt on the election this year, and has continued to sow doubt on election day.