Senate Foreign Relations Committee Chair John KerryJohn Forbes KerryBringing the American election experience to Democratic Republic of the Congo Some Dems sizzle, others see their stock fall on road to 2020 The Hill's 12:30 Report MORE (D-Mass.) announced Wednesday that his panel will hold a hearing on Thursday to discuss U.S. relations with Iran.

The third part of a series on U.S. relations with the country, the hearing will be titled "U.S. Strategy Regarding Iran." Former National Security Advisors Dr. Zbigniew Brzezinski and Brent Scowcroft will testify at the hearing.

The hearing will focus on how the United States should engage Iran. Earlier this week, the committee held a hearing on Iran's nuclear program and regional diplomacy.