varied roles which an American President performs--Head of State, Chief Executive, party leader, and, in this instance, prospective candidate for reelection.

The Dallas motorcade, it was hoped, would evoke a demonstration of the President's personal popularity in a city which he had lost in the 1960 election. Once it had been decided that the trip to Texas would span 2 days, those responsible for planning, primarily Governor Connally and Kenneth O'Donnell, a special assistant to the President, agreed that a motorcade through Dallas would be desirable. The Secret Service was told on November 8 that 45 minutes had been allotted to a motorcade procession from Love Field to the site of a luncheon planned by Dallas business and civic leaders in honor of the President. After considering the facilities and security problems of several buildings, the Trade Mart was chosen as the luncheon site. Given this selection, and in accordance with the customary practice of affording the greatest number of people an opportunity to see the President, the motorcade route selected was a natural one. The route was approved by the local host committee and White House representatives on November 18 and publicized in the local papers starting on November 19. This advance publicity made it clear that the motor-cede would leave Main Street and pass the intersection of Elm and Houston Streets as it proceeded to the Trade Mart by way of the Stemmons Freeway.

By midmorning of November 22, clearing skies in Dallas dispelled the threat of rain and the President greeted the crowds from his open limousine without the "bubbletop," which was at that time a plastic shield furnishing protection only against inclement weather. To the left. of the President in the rear seat was Mrs. Kennedy. In the jump seats were Governor Connally, who was in front of the President, and Mrs. Connally at the Governor's left. Agent William R. Greer of the Secret Service was driving, and Agent Roy H. Kellerman was sitting to his right.

Directly behind the Presidential limousine was an open "followup" car with eight Secret Service agents, two in the front seat, two in the rear, and two on each running board. These agents, in accordance with normal Secret Service procedures, were instructed to scan the crowds, the roofs, and windows of buildings, overpasses, and crossings for signs of trouble. Behind the "followup" car was the Vice-Presidential car carrying the Vice President and Mrs. Johnson and Senator Ralph W. Yarborough. Next were a Vice-Presidential "followup" car and several cars and buses for additional dignitaries, press representatives, and others.

The motorcade left Love Field shortly after 11:50 a.m., and proceeded through residential neighborhoods, stopping twice at the President's request to greet, well-wishers among the friendly crowds. Each time the President's car halted, Secret Service agents from the "followup" car moved forward to assume a protective stance near the President and Mrs. Kennedy. As the motorcade reached Main Street, a principal east-west artery in downtown Dallas, the welcome became