At least 58 people were killed and more than 500 were injured Sunday night in the deadliest mass shooting in modern American history. Now, politicians like President Obama, President Trump, and Hillary Clinton are speaking out about the attack.
On Monday, Barack Obama tweeted his and Michelle's condolences to everyone affected by "another senseless tragedy."
Obama was an avid campaigner for gun control during his presidency, memorably breaking down in tears on live television over the Sandy Hook massacre, which left 20 children and six teachers dead. In 2015, he said that his failure to pass gun safety laws was the "biggest frustration" of his time in the White House.
Hillary Clinton also paid tribute to those affected by the Las Vegas shooting, using Twitter to call for politics to be put aside to ensure such a tragedy isn't repeated.
President Trump responded to the events in Nevada in a televised address calling the attack an "act of pure evil." He said the nation is united in shock, sadness, and grief, and pledged to travel to Las Vegas on Wednesday.
The Associated Press contributed reporting.