I recall Rush goal was to prolong that Democrat primary. HRC had practically lost.
Rush Limbaugh: ‘Operation Chaos’ A Success In Extending Nomination
https://www.huffingtonpost.com/2008/05/06/rush-limbaugh-operation-c_n_100485.html
In late February 2008, Limbaugh announced “Operation Chaos,” a political call to action with the initial plan to have voters of the Republican Party temporarily cross over to vote in the Democratic primary and vote for Hillary Clinton, who at the time was in the midst of losing eleven straight primary contests to Barack Obama. Limbaugh has also cited the open primary process in the early primary states of New Hampshire and South Carolina, which allowed independent voters to cross over into the Republican primaries to choose John McCain over more conservative candidates (such as Fred Thompson), as an inspiration.
https://en.wikipedia.org/wiki/The_Rush_Limbaugh_Show#Operation_Chaos
Yes, I remember him talking about it. But how much effect did it really have? Despite the media propping her up, Dems really don’t like Hillary.