 Complete the following phrase:  Following the United States invasion of Grenada in 1983, González suggested the impeachment of President Ronald Reagan, and he introduced articles of impeachment related to the IranContra scandal and sent them to the House Judiciary Committee in 1987. No further action was taken on said articles. González later called for the impeachment of President George H. W. Bush for not obtaining Congressional approval before the 1991 Gulf War. Early in the presidency of Bill Clinton, González also blocked hearings into the 