The almost-here “fiscal cliff” (where the heck did that uniformly used label originate I wonder) provides a wonderful litmus test for your perusal the press and other commentary sources.
The expiration that looms involves the addition of a set of tax increases and spending cuts. Both occur. If the source talks about the “cliff” as about tax increases and not about looming cuts in spending, that’s a Democrat biased source. If the source talks not about taxes but about spending cuts which will occur that’s a GOP biased one.
The only possibly non-biased sources are the ones that talk about both. That they talk about both doesn’t mean they are unbiased.