In an effort to affirm its commitment to its most faithful voting constituency, the Democratic Party honored at a fund-raising dinner last night the seven members of the Congressional Black Caucus who chair congressional committees. The dinner, organized by the Black Caucus of the Democratic National Committee, had House Speaker Thomas P. (Tip) O'Neill Jr. (Mass.), National Committee Chairman Paul Kirk, Lt. Gov. Douglas Wilder (Va.) and Coretta Scott King as honorary sponsors.

The event raised more than $100,000 "to facilitate increased participation of blacks in the political process," according to C. DeLores Tucker, who heads the Black Caucus.

The seven congressmen who received awards were Reps. Augustus F. Hawkins (Calif.), Parren J. Mitchell (Md.), Ronald V. Dellums (Calif.), Julian C. Dixon (Calif.), William H. Gray III (Pa.), Mickey Leland (Tex.) and Charles B. Rangel (N.Y.).

The Rev. Jesse L. Jackson told the audience that blacks are "more than a caucus. There are more black voters than Walter Mondale and Gary Hart together won in 1984." Reach Out and Touch Someone

Hamilton Jordan, a candidate for the Democratic Senate nomination in Georgia, has been calling members of Congress seeking support. But when Jordan was White House chief of staff for President Jimmy Carter, he was notorious for his poor relations with Capitol Hill.

One congressman was paged off the House floor recently with the message that Jordan was calling. Picking up the phone in the cloakroom, he greeted Jordan: "Ham, you must be returning my call from 1979." To Run or Not to Run?

"A struggle for mastery over my mind and body began this morning at about 9 a.m. Twenty-four hours earlier I had started to feel the insurrection brewing. Unease accompanied me all through that day . . . . Throughout the day, in the back of my mind, forces argued -- sometimes tempestuously -- over why I was feeling so disturbed. What would explain it? Could it be the strain of my work as governor? Frustrations over misplaced criticism, rejected ideas? . . . .

"Finally, I decided to replace confusion with action, to convert the tentativeness and the discomfort into a directed force . . . . And now I know I can win again, and again, and again after that . . . . I'll be able to put aside those days when factions of me 'can't get out of bed' and move on to the days when we really want to and on those days I'll run twice as hard."

Gov. Mario M. Cuomo (D-N.Y.) debating whether to run for president in 1988? No. It's Gov. Mario M. Cuomo forcing himself to make his morning jog, as recounted in this month's issue of "The Runner" magazine. Tool of the Do-Gooders?

Not a sparrow that falls escapes the attention of the National Rifle Assocation. Sarah Brady, wife of White House Press Secretary James S. Brady, has been campaigning for stronger gun control laws since her husband was almost killed by a gunshot wound to the head five years ago. Addressing the convention of the Virginia Federation of Republican Women, she likened the support her family was given to "an old-fashioned barn-raising when the community all joins together." The NRA, denouncing her as a "tool" of the gun control lobby, requested -- unsuccessfully -- equal time before the group. Polls

A recent Democratic poll shows the Louisiana Senate race tightening but still wide open, with less than half the voters decided. The poll shows Rep. W. Henson Moore (R) leading Rep. John B. Breaux (D), 46 to 40 percent. The poll of 600 probable voters was taken April 17-21 by William R. Hamilton.

However, the latest Republican poll shows Moore still holding a substantial lead, 51 to 37 percent. Pollster Lance Tarrance interviewed 400 likely voters April 14-16.