Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE said that a trio of attacks across the U.S. on Saturday prove that President Obama's and Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE's policies can't protect Americans.

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"Under the leadership of Obama & Clinton, Americans have experienced more attacks at home than victories abroad. Time to change the playbook!" he wrote.

Under the leadership of Obama & Clinton, Americans have experienced more attacks at home than victories abroad. Time to change the playbook! — Donald J. Trump (@realDonaldTrump) September 19, 2016

Saturday’s attacks show that failed Obama/Hillary Clinton polices won’t keep us safe! I will Make America Safe Again! — Donald J. Trump (@realDonaldTrump) September 19, 2016

Terrible attacks in NY, NJ and MN this weekend. Thinking of victims, their families and all Americans! We need to be strong! — Donald J. Trump (@realDonaldTrump) September 19, 2016

On Saturday, 29 people were injured in New York City when a homemade bomb exploded in Chelsea. A pipe bomb was also found in New Jersey, but it did not cause any injures. And in Minnesota, a man stabbed eight people in a shopping mall. A news site affiliated with the Islamic State in Iraq and Syria called the man a "soldier" of the terrorist group.

In a statement Sunday, Clinton said she's praying for those wounded and their families and said "this should steel our resolve to protect our country and defeat ISIS and other terrorist groups."