Weeks after the official end of the legislative year, state lawmakers have finally reached a deal on a supplemental spending bill totaling roughly $3 billion. The legislation would, among other things, boost funding for Massachusetts' beleaguered shelter system, which has been overwhelmed by the ongoing influx of migrants into the state.

But there's a catch: despite Democratic supermajorities in both the state House and Senate, legislative rules make it easy for Republicans to impede the legislation's passage — and for now, that's exactly what they're doing.

Adam Reilly is joined by GBH News State House reporter Katie Lannan, who explains why the Republicans hold unusual leverage in this case and why Democrats seem reluctant to take the steps necessary to resolve the situation.

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