Former President Ronald Reagan died Saturday at his home in Los Angeles. He was 93.
Reagan led a conservative revolution that set the economic and cultural tone of the 1980s, hastened the end of the Cold War and revitalized the Republican Party. He suffered from Alzheimer's disease since at least late 1994.
At least two of his children and his wife, Nancy, were at his bedside, according to the former president's Los Angeles office.
Ron Reagan, Jr. and Patty Davis, children from his current marriage to Nancy Davis Reagan, were with him at his home in the Bel Air district of Los Angeles, the office said.
It was unclear whether Michael Reagan, his adopted son from his first marriage to actress Jane Wyman, was at his side. Maureen Reagan, his daughter from that marriage, died of brain cancer in 2001.
Reagan's body is to lie in state at the Ronald Reagan Presidential Library in Simi Valley, California, and at the U.S. Capitol in Washington, D.C., before his burial at the library.
President Bush was informed of Reagan's death while in Paris, where he is on tour to honor the heroes of World War II on the weekend of the 60th anniversary of the D-Day invasion.
The White House lowered its flag to half-staff after the news. Bush planned to issue a recorded statement later.
Michael Reagan released a statement soon after his father's death.
"I pray that as America reflects on the passing of my Dad, they will remember a man of integrity, conviction and good humor that changed America and the world for the better," Michael Reagan said. "He would modestly say the credit goes to others, but I believe the credit is his."