The senator took to Twitter Tuesday night to discuss a fundraising letter that the Republican presidential candidate had emailed out. Cruz’s letter listed all the sacrifices he has had to make in order to run for president. Cruz wrote that he faces “a constant barrage of political and personal attacks” by the media, Hillary Clinton, and Republican frontrunner Donald Trump. He also said he has no time to spend with his family, gets very little sleep, and has no personal time.

Warren did not mince words in her attack: “Are you kidding me, Ted Cruz? We’re supposed to pity you because trying to be the leader of the free world is hard?! 2 words: Boo hoo.”

She then turned his own letter on him by talking about the working class and their struggles, saying that they have to make the same sacrifices with a very different pay off.

Yesterday @TedCruz sent a campaign email whining about the “significant sacrifice” he’s made to run for President. pic.twitter.com/yKtLpWG0Ou

— Elizabeth Warren (@ewarren) April 19, 2016

.@TedCruz whined about facing constant attacks, nonexistent family time, limited health and sleep, and no personal time.

— Elizabeth Warren (@ewarren) April 19, 2016

Are you kidding me, @TedCruz? We’re supposed to pity you because trying to be the leader of the free world is hard?! 2 words: Boo hoo.

— Elizabeth Warren (@ewarren) April 19, 2016

Know whose health is limited? Workers w/ no paid leave who can't stay home when sick or caring for kids. @TedCruz won't support it.

— Elizabeth Warren (@ewarren) April 19, 2016

Know whose sleep is limited? Working parents who stay up worrying about getting kids thru college w/o big debt. @TedCruz blocked #refi.

— Elizabeth Warren (@ewarren) April 19, 2016

Know who gets no personal time? People who work 2 min wage jobs to support their families. @TedCruz opposes giving them a raise.

— Elizabeth Warren (@ewarren) April 19, 2016

Know who gets no family time, @TedCruz? Moms w/ unfair schedules who drop kids at daycare & find their hrs cancelled. @GOP won't help.

— Elizabeth Warren (@ewarren) April 19, 2016

Know who’s facing "constant attacks," @TedCruz? Hardworking American immigrants, Muslims, LGBT folks, women. Your constant attacks.

— Elizabeth Warren (@ewarren) April 19, 2016

And @TedCruz? Working people work more, get paid less, can't save, get mistreated, struggle with illness & family – but they don't whine.

— Elizabeth Warren (@ewarren) April 19, 2016

They don't throw tantrums or try to shut down their workplace because they don't get their way – & then turn around & demand promotions.

— Elizabeth Warren (@ewarren) April 19, 2016

You chose to run for President, @TedCruz. You chose to make your “sacrifices.” Working people don't have a choice.

— Elizabeth Warren (@ewarren) April 19, 2016

Hey @TedCruz: Maybe you should spend less time complaining about your "significant sacrifices" – & more time doing something about theirs.

— Elizabeth Warren (@ewarren) April 19, 2016

Ted Cruz’s campaign could not immediately be reached for comment.