The story of Herbert Burke and the 1 term rat that replaced him sounds like an interesting one.
Burke had been part of that early group of midwesterners (he was a native of Chicago) that relocated to FL around after WW2 and started getting elected to office as Republicans (he actually had run for Congress as long ago as 1955). He apparently also had interesting “appetites” in his personal life (that would be lampooned to a degree in the Demi Moore film, “Striptease”, with Burt Reynolds playing a Burke-esque figure). He insisted on running for reelection despite his peccadilloes coming to light in 1978 (when he was arrested outside a strip club) and he lost to ex-Republican, Broward Co. Sheriff Ed Stack (interestingly, back when Stack was the GOP Mayor of Pompano Beach in the ‘60s, he had run against Burke in the 1966 primary and almost beat him there).
Although Stack had a liberal voting record, Dem primary voters decided to go with a younger (and Jewish, I believe) nominee, Alan Becker, (Stack was 70) in 1980. However, that Democrat had spent so many resources in taking out Stack in the primary (add to that the anger over the Marielitos, which was saddled on Democrat candidates) that he was ultimately outmatched in the general against then-Fort Lauderdale Mayor Clay Shaw, and the district swung back to the GOP. When a new Democrat district was created in 1982 for Broward, Becker tried, but lost in the Dem primary to Larry Smith, who would occupy that seat for the next decade (the district, with some tweaks, is now occupied by the dingbat Miss Debbie).
As an aside, in the time that Burke had been building his political career, the Broward-based district had gone from being a WASPy GOP seat that was almost a de facto suburb of Chicago because of all the Midwesterners, to a liberal Jewish enclave made up of Northeasterners — the district had gone from supporting Nixon in a landslide to Carter by ‘76, so Burke was in some trouble on demographics (he nearly lost in ‘74 and ran ahead of Ford to retain his seat in ‘76 against that same opponent). They did swing back to Reagan by 1980 (with 56%, with Ford having gotten 47% in ‘76 and Nixon 72% in ‘72).