Senate committee hears from co-founder of firm linked to 'salacious' Trump dossier

The co-founder of a Washington opposition research firm that produced a dossier of salacious claims involving Donald Trump has spent hours speaking to Senate investigators in a closed-door meeting.

Glenn Simpson's lawyer, Josh Levy, emerged from the day-long private appearance and said his client had "told Congress the truth and cleared the record on many matters of interest".