Joe Biden’s presidential campaign says President Donald Trump is “lying about the one Democrat he doesn’t want to face” in the first new spot to be included in the former vice president’s $6 million broadcast and digital advertising push across the four early-voting states.

The 30-second ad, titled “Unhinged,” focuses on Biden’s response to Trump’s public and private efforts to get foreign governments to investigate Biden and his son Hunter. It will run in Iowa, New Hampshire, South Carolina and Nevada as a digital ad and in some of those television markets.

The ad is geared to show a Democratic audience that Biden, who polls show battling Sens. Elizabeth Warren of Massachusetts and Bernie Sanders of Vermont at the top of the polls, is the most electable candidate — or at least the one Trump fears the most — in the party’s 2020 field.