Kirkpatrick and Gallego issued lengthy statements to explain their positions, as debate over the deal rages.
Kirkpatrick is likely to face questions about her support on the campaign trail as she seeks the seat of U.S. Sen. John McCain, who spoke against the deal Wednesday on the Senate floor. Around the same time, Republican presidential contenders Ted Cruzand Donald Trump held a rally on the Capitol lawn to protest the agreement.
Kirkpatrick said the deal is not perfect but is the United States' best diplomatic opportunity to prevent greater conflict. The agreement "blocks Iran's path to a nuclear weapon, protects Israel and launches a historic diplomatic agreement that prepares us for the future in an increasingly volatile world," she said in a written statement.
Kirkpatrick called for vigorous enforcement of the deal's provisions to prevent Iran from developing nuclear capabilities and for advancing agreements with Israel to strengthen its military.
Gallego warned that if Congress rejects the agreement, sanctions against Iran could crumble and the United States could lose all leverage except for military force. He praised the cooperation of five nations that negotiated the deal with Iran.
"As a combat veteran of the Iraq War, I strongly believe we must not repeat the mistakes of the past by forsaking the hard work of coalition-building in favor of unilateral action," Gallego said in a written statement.
Israel will be safer with Iran in check, he said, noting he visited Israel on a congressional junket this summer and spoke with leaders including Prime Minister Benjamin Netanyahu.
McCain said he opposes the deal because it will pave Iran's path to a nuclear capability and embolden its military ambitions.
"This deal is not in our national security interests, and Congress should reject it," he said.
McCain's campaign also criticized Kirkpatrick for supporting the agreement, calling it "dangerous and wrong" in a written statement.
â€śBy endorsing this bad deal with Iran, Congresswoman Kirkpatrick is proving herself to be a rubber stamp for President Obama's failed foreign policy -- the last thing Arizona and America need in this dangerous world,â€ť the campaign said in the statement.
Original artile on AZ Central