Following Donald Trump’s primary win in Indiana, Massachusetts Senator Elizabeth Warren blasted the Republican frontrunner on social media for building “his campaign on racism, sexism and xenophobia,” vowing to ensure “Trump’s toxic stew of hatred and insecurity never reaches the White House.” Democrat Warren has largely stayed on the sidelines of the nominating process for her own party this election cycle, but the progressive politician consistently slams Republican candidates for their positions on big banks, labor laws and women’s rights. This isn’t the first time Warren has unleashed a social media tirade on Trump. In March, she sent a tweet storm bashing “loser” Trump for his “petty bullying, attacks on women, cheap racism and flagrant narcissism.”