AUSTIN, Texas — As the weather turned unseasonably cold for the third day of South By Southwest, discussions about entrepreneurship and immigration heated up.

Reps. Suzan DelBene and Darrell Issa were often at loggerheads in a Sunday morning discussion on how policymakers can create ecosystems that encourage entrepreneurship.

When talk turned to immigration, moderator Greg Ferenstein of Techcrunch asked why the House was holding up the vote on an overhaul. Issa, a California Republican, replied with a question of his own: “Why did the Senate get rid of a 100-year-old procedure on confirming nominees? Because it was in Harry Reid’s best interest and he did it.”