Will Kyrsten Sinema tank the Biden administration because she now loves the Trump upper-class tax cuts she once voted against?
By 
We may still be headed that way:
The Wall Street Journal today reports that Sinema “has told lobbyists that she is opposed to any increase” in taxes on high-income individuals, businesses, or capital gains. Her opposition is reportedly “pushing Democrats to more seriously plan for a bill that doesn’t include those major revenue increases.”
If this report is true, it would likely be a death blow to Biden’s social agenda. Senate rules require that creating or expanding any social program — health care, child care, education, or anything else — can only be made permanent if it has some funding source. If Sinema refuses to support any tax increases on the wealthy, there’s no financing available to come anywhere close.
[…]
Democrats have torn their hair out trying to discern Sinema’s motives. In all likelihood, she has simply been persuaded by the arguments made by the rich people and lobbyists she is hanging around with constantly. But unless either the reports are wrong or she changes her mind, she is setting Democrats on a course for an utter debacle.
“Never but unrepentant supporters of Ralph Nader’s 2000 campaign to elect George W. Bush in any important political position” seems like a good general rule.