Despite Corazon's initial opposition, Benigno Aquino Jr. decided to run in the 1978 Batasang Pambansa elections from his prison cell as party leader of the newly created LABAN. Corazon Aquino campaigned on behalf of her husband and delivered a political speech for the first time in her life during this political campaign. In 1980 Benigno Aquino Jr. suffered a heart attack, and Marcos allowed Senator Aquino and his family to leave for exile in the United States upon intervention from U.S. President Jimmy Carter so that Aquino could seek medical treatment. The family settled in Boston, and Corazon Aquino would later recall the next three years as the happiest days of her marriage and family life. On 21 August 1983, Benigno Aquino Jr. ended his stay in the United States and returned without his family to the Philippines, where he was immediately assassinated on a staircase leading to the tarmac of Manila International Airport. The airport is now named Ninoy Aquino International Airport, renamed by the Congress in his honor in 1987. Corazon Aquino returned to the Philippines a few days later and led her husband's funeral procession, in which more than two million people participated.