Debt Limit Bill Heads to Key Committee in First Test of G.O.P. Support

Legislation to raise the government debt ceiling and set federal spending limits begins its obstacle-laden route through Congress on Tuesday with consideration by a crucial panel where it will face its first test, as congressional leaders rush to win passage before a default projected in less than a week.

The House Rules Committee is typically a rubber stamp for party leaders, but the panel includes some hard-right Republicans whom Speaker Kevin McCarthy added in January to help him win over conservatives during his battle for the speakership. Now that concession could prove...