Kari Lake announces Arizona Senate run

Kari Lake launched a U.S. Senate campaign for an Arizona seat in a splashy Scottsdale rally on Tuesday, having never conceded that she lost last year's race for Arizona governor.

She is trying out new messages and courting the support of national Republicans she's insulted in the past. But the former television news host isn't backing down on the things that made her a star on the far right — her combativeness with perceived enemies, her fealty to Donald Trump and her willingness to defend his election lies.

National Republican leaders think a GOP candidate could take advantage of what could be a three-way race if Sen. Kyrsten Sinema seeks reelection. Sinema, a former Democrat who became an independent last year, is preparing for a campaign but has not said whether she will seek a second term. U.S. Rep. Ruben Gallego is likely to have the Democratic nomination locked up.