Update (1150ET): While the Senate vote on the $1.2 infrastructure package is ongoing as of this writing, the chamber now has enough votes to pass the legislation and send it to the House.

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After 50 hours of congressional debate over a 2,700 page, $1.2 trillion infrastructure bill, the US Senate is expected to pass the "once-in-a-generation" legislation, before it's kicked back to the House of Representatives - where Speaker Nancy Pelosi (D-CA), has vowed to shelve it until the Senate also passes a separate $3.5 trillion partisan budget.