Despite some concerns with the war in the Persian Gulf, Washington's political fund-raising season is continuing pretty much as usual.

Sen. Charles E. Grassley (R-Iowa), who canceled a fund-raising event in Des Moines last week because of the outbreak of fighting, decided to go ahead with a $1,000-a-ticket reception at La Colline restaurant on Capitol Hill last night.

Grassley spokeswoman Caran McKee said the senator, who is up for reelection in 1992 and already has more than $620,000 in the bank, considered postponing the Washington event, too. But he went ahead after "looking at everything else in Washington and seeing events still going on," she said.

Freshman Rep. Thomas H. Andrews (D-Maine) also is proceeding with a $500 event next week, hoping to retire part of his $90,000 campaign debt. Noric Weiss, Andrews's fund-raising consultant, said, "I'm not comfortable asking for money at a time of national crisis." But the fund-raiser was planned before the war started, she said. And it is always difficult for a newcomer to find help in reducing debt.

Because of the war, House Majority Leader Richard A. Gephardt (D-Mo.) has postponed a $500-a-ticket event next week to celebrate his 50th birthday. The invitation touted "live music & dancing" at the Car Barn in Georgetown.

But spokesman David Dreier said, "There are things weighing more heavily on people's minds than the majority leader's birthday." The event may be rescheduled but no date has been set, he added. Gephardt spent nearly $1.4 million against a little-known opponent last fall and had $241,032 in the bank at the end of November.

Wendy Burnley, spokeswoman for the National Republican Senatorial Committee, said everyone is concerned about the war. But "we're continuing full steam ahead. The fact remains that in November 1992 there will be 35 Senate elections. You cannot put the brakes on what you are doing."

The NRSC will be hosting some of its larger donors at a Super Bowl party in Tampa, Fla., Sunday, Burnley said. In past years, several members of Congress and the party committee have used pro football's premier event as a fund-raising tool.

The Democratic Senatorial Campaign Committee was planning a Super Bowl party for some major donors, too. But the weekend will no longer be a DSCC event and three or four senators who planned to go have canceled because of the war, spokeswoman Anita Dunnshe said. "The situation {in the gulf} is so volatile at this early stage that many senators didn't want to be out of Washington or their states."