What way do you think they lean politically? Many of them would no longer be considered modern Democrats. For example, 2016 Bernie was for strong borders, avoiding unnecessary war, and breaking away from trade agreements that were unfavorable to American workers. Modern Bernie votes to fund a war in Ukraine and no longer cares about securing the border. The Democratic party of today is socially far more left, but their foreign policy, free speech stances, and economic agenda resembles the old (pre-Trump grenade) Republican party. Weird times.