archeological treasures from Peru." May 7 – President Bush announces the nomination of William Bodde, Jr. for Ambassador Extraordinary and Plenipotentiary of the United States of America to the Republic of the Marshall Islands. May 7 – President Bush announces the nomination of Joseph Edward Lake for Ambassador Extraordinary and Plenipotentiary of the United States of America to the Mongolian People's Republic. May 23 – President Bush announces the nomination of Thomas W. Simons, Jr. for Ambassador Extraordinary and Plenipotentiary of the United States of America to the Republic of Poland. May 24 – President Bush holds his forty-eighth news conference in the Briefing Room, answering questions from reporters on saving and loan crisis, trade with China, relations between Cambodia and the US, Lithuanian independence, trade with China, negotiations on the federal budget, relations between Mexico and the US, arms reduction negotiations, and statehood on the District of Columbia. May 24 – President Bush attends a White House ceremony commemorating the twenty-fifth anniversary of Head Start in the Rose Garden. The speech President Bush delivers is reflective of the accomplishments of the program and ends with his intentions toward it for the administration. May 24 – President Bush sends Congress the Amtrak Reauthorization and Improvement Act of 1990 without his approval in a message. President Bush explains that he vetoed the measure because it "would interfere with the ability of the Nation's largest freight railroads to obtain needed capital or to change existing capital structure." May 24 – President Bush announces the nomination of Roger Gran Harrison for Ambassador Extraordinary and Plenipotentiary of the United States of America to the Hashemite Kingdom of Jordan. May 24 – President Bush releases a statement congratulating the House of Representatives on the passage of the Clean Air Amendments of 1990. President Bush says the overwhelming support for the measure "shows that the American people strongly support steps to reduce acid rain, smog, and air toxics emissions." May 24 – President Bush participates in an interview with Christian Malar in the Family Dining Room of the White House. May 24 – President Bush signs the S. 1846 into law. The legislation is said to make various amendments to Indian laws. May 25 – President Bush announces the nomination of Paul L. Ziemer for Assistant Secretary of Energy for Environment, Safety and Health. May 25 – President Bush announces the nomination of Calvin A. Kent