Donald Trump is promising more payments to voters just ahead of the Nov. 3 midterm elections — this time, to more than 20 million seniors, giving them $90 each to help pay for Medicare premiums.

The announcement, made late Friday night by Trump on social media, comes after the president last month said about 1 million people would get rebate checks of $500 for Affordable Care Act premiums. He has also promised on the campaign trail to send every American adult $5,000 if Republicans retain control of the House and Senate in the midterm elections.

That pledge — which would require approval from Congress — would likely cost more than $1 trillion, adding to the deficit and worsening inflation.