Pro/Con: Are filibusters effective?

A pair of pink tennis shoes and - toward the end of the night - a back brace helped keep state Sen. Wendy Davis, D-Fort Worth, going during her nearly 11-hour filibuster in June against Senate Bill 5.

The bill aimed to ban abortions after 20 weeks and require clinics to meet hospital-style standards, according to a copy of the document.

Three months later, it was Sen. Ted Cruz, R-Texas, who took the floor, this time for more than 21 hours, in support of defunding the Affordable Care Act.

The filibuster is a long-held tradition of legislators used primarily to hold off or block legislative action.

But is it effective?

Pro: Filibusters raise awareness, allow work to get done

Con: Filibusters don't achieve intended purpose, cause unnecessary holdups