The Senate returned to Capitol Hill on Monday with a new mission at the top of their agenda: uniting behind President Trump's "one big, beautiful bill." It took Congress weeks to narrowly agree on the legislation, passing it with a thin 215-214 vote. Many Senate Republicans have been vocal that they will not support the bill as it currently stands.

So, what will the major sticking points be for the Senate GOP? Will the modifications they make to the bill lead to it being sent back to the House? Senator Markwayne Mullin (R-OK) breaks down the Senate's main concerns with the bill, the challenges that come with navigating the Senate's budget reconciliation rules, and why he remains confidently optimistic that the Senate will pass a bill that aligns with President Trump's priorities.

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