In 1984, I watched the Olympic cycling road event, held at Mission Viejo. Rode bikes with my brother, to get there.
For those 1984 Olympics, existing venues were utilized, and those games were judged a huge success. Those existing venues included the Coliseum, the Rose Bowl, etc.
(I wonder how much of a spending boondoggle was proposed, this time?)
Ronald Reagan was President, and had previously been Governor. All that I need to do, is last 11 more years.