Gov. Arnold Schwarzenegger on Tuesday scheduled an April 8 special election to fill the congressional seat left vacant by the death of Rep. Tom Lantos.

If no candidate gets more than 50 percent of the vote, a runoff will be held June 3 between the top vote-getters in each party.

June 3 also is the date of California's regular primary election. It will include the race for a full two-year term representing Lantos' district, which includes southwestern San Francisco and all or parts of several other cities on the northern San Francisco peninsula.

Lantos died Monday of cancer of the esophagus. A Democrat, he was the chairman of the House Foreign Affairs Committee and the only Holocaust survivor to serve in Congress.

Lantos had announced in January that he would not run for a 15th term in the House of Representatives.

In Washington Tuesday, the House observed a moment of silence in Lantos' honor and brought a resolution to the floor to express condolences.