If you were writing an article headlined "Republicans cast doubts on Senate parliamentarian," would you wait 16 paragraphs before mentioning that the Senate Parliamentarian was elevated to the job when Republicans fired his predecessor for ruling against them? Would you omit any mention of the fact that, having done so, Republicans then threatened to fire him?
If not, you just aren't cut out for Politico, which reports:
Senate Republicans are waging a pre-emptive strike against the Senate's parliamentarian - a hitherto little-known official who could determine the fate of the Democrats' health care reform efforts.
In interviews with POLITICO, several Republican senators and aides cast Parliamentarian Alan Frumin - a 33-year veteran of the Senate - as someone who is predisposed to side with the Democrats if they attempt to use the reconciliation process to pass parts of their bill.
The Senate GOP's previous behavior towards Senate parliamentarians, including Frumin, would certainly seem to undermine their "pre-emptive strike." Maybe that's why Politico glossed over it?