David Doak, who ran Jimmy Carter's presidential campaigns in Iowa and Maryland and who was Robb's campaign manager last fall, is employed once again. He is director of campaign services for former vice president Fritz Mondale's political action group, the Committee for the Future of America, which will have the veep out campaigning for Democratic candidates this year. As far as 1983 and 1984 are concerned--who knows what the future portends?

Mondale is giving some hints. In Nashville a couple of days ago, he helpfully pointed out that unemployment is higher than at any time since the Great Depression and contended that the Reagan administration has destroyed the housing and auto industries. Noting that 9.5 million were unemployed, he remarked that "everybody earning $100,000 a year or less is worse off now than they were before."

Reagan's ability to pull congressional votes for his programs in his first year as president was surpassed in the post-World War II era only by Dwight D. Eisenhower and Lyndon B. Johnson. According to Congressional Quarterly, the Congress voted with him 81.9 percent of the time; Ike got 89 percent support in 1953, and Johnson got 88 percent in 1964 (Johnson has the overall record of 93 percent in 1965, the year after his landslide election).

Reagan's score is almost identical to that of John F. Kennedy, who was supported 81 percent of the time by the Congress in 1961. Not surprisingly, the Republican-controlled Senate backed Reagan more than the Democratic House, 87.5 percent of the time compared to 72.4. Equally predictable, his strongest Senate supporters were the 16 freshman Republicans, led by Mack Mattingly of Georgia, 87 percent, and Slade Gorton of Washington and Dan Quayle of Indiana, both with 86 percent. 's Out, No He's In: Barney Frank (D-Mass.), who considered not running this year when his district was combined with that of eight-term Republican Margaret Heckler, has decided to challenge her. Massachusetts lost a seat as as result of the 1980 census and Frank was the loser when the Democratic state legislature redrew the lines, partly because he had antagonized some of his fellow Democrats in the past with his independent ways, partly because Gov. Edward King, a conservative Democrat, wants to help Heckler in every way possible so she won't challenge him.

Is She In or Out? Lack of financing, a fatal political condition in a huge media state like California, forced Maureen Reagan to dismiss her professional campaign firm, the Dolphin Group headed by Bill Roberts, the veteran California Republican consultant. Reagan, who is one of several Republicans out for the Senate seat of their fellow Republican, S. I. Hayakawa, said Roberts' firm was "very expensive" and that she would rely on volunteers "for the indefinite future." A campaign spokesman said she might decide that preocuupation with her famous father, who announced his neutrality last week, might prevent a fair evaluation of her candidacy, but added, "At this point, I don't see any signs she's not running."