And they can do this with a simple majority in both chambers
The article I posted was clear, and if you read it you saw the following...
GOP Congressman Floats Passing Border Wall Funding Through Budget Reconciliation
House and Senate leaders, however, could easily put together a so-called shell budget for the purposes of providing reconciliation instructions for legislation to appropriate border wall funding.
The question is whether that’s something Republican leaders would want to pursue.
Unless you want to argue that the Democrats let the Republicans in the Senate pass a budget resolution for the Tax Cuts even though they could block it, which of course contradicts the claim that the Democrats are somehow destined to obstruct everything republicans do!
If a budget resolution includes instructions for reconciliation, there is no need to have supermajority
If you want to argue that it was the lack of agreement among republicans, I am fine with it. I am just addressing the claim that it was somehow the Democrats who could block that legislation.