President Obama Joins a Long List of Tearful Politicians

President Obama's gun control appeal is getting strong reaction.

Just hours after President Obama's emotional appeal to end gun violence on Tuesday, the GOP front runners fired back questioning his sincerity.

Read: Obama Wipes Away Tears As He Announces Gun Control Plan, Remembers Victims

On the Today show on Wednesday, Marco Rubio said the president was "obsessed with undermining the second amendment," while Ted Cruz mocked the president as a tyrant:

But Donald Trump believes those were not crocodile tears.

“I actually think he was sincere," Trump said on Fox News. "I'll probably go down about five points in the poll by saying that but I think he was sincere."

Read: Mom of Sandy Hook Victim Reveals The Words That Kept Her Alive After Her Son's Death

But Obama isn't the first president to wear his emotions on his sleeve.

President Ronald Reagan wept after the space shuttle Challenger exploded in 1986. He said the victims "slipped the bonds of earth to touch the face of God.”

Former President George H.W. Bush struggled with his emotions as he spoke about his son, Jeb, in 2006, saying: “The true measure of a man is how you handle victory and also defeat.”

In 2008, Hillary Clinton won votes by showing her soft side in New Hampshire. Her voice cracked as she spoke to a group of women about how tough it can be in politics.

She told the women: "This is very personal for me. I have so many ideas for this country and I just don't want to see us fall backwards. It's about our country, it's about our kids' future."

But no politician has ever been a match for the waterworks displayed by former Speaker of the House John Boehner.

Boehner showcased his emotions right up until he stepped down from the position. He shed tears of joy when Pope Francis spoke in Washington, D.C. in September.

Watch Below: After Announcing Resignation John Boehner Cries Again Over Pope Francis