Former President Barack Obama recently caused a stir by praising Sen. Elizabeth Warren’s coronavirus economic plan. Obama’s message was widely seen as a nudge for presumptive presidential nominee Joe Biden to choose her as his running mate.

“As she often does, @SenWarren provides a cogent summary of how federal policymakers should be thinking about the pandemic in the coming months,” Obama wrote in a tweet and linked a Vox interview with the Massachusetts and 2020 Democratic also-ran, in which she detailed policy proposals to aid people suffering from layoffs.