BAGHDAD, April 20 (Xinhua) -- Iraq's Coordination Framework, an umbrella alliance of Shiite parties and the largest parliamentary bloc, failed Monday to agree on a nominee for prime minister-designate, the state-run Iraqi News Agency reported.

Abbas al-Amiri, the alliance's secretary-general, said the meeting was "positive," with members presenting and discussing views on potential candidates, but added that more time was needed.

Al-Amiri said the bloc will hold another meeting on Tuesday, aiming to reach a final decision by Wednesday.

On April 11, Iraq's parliament elected former environment minister Nizar Amedi as president. Under the constitution, the president has 15 days to nominate a prime minister-designate from the largest parliamentary bloc. The nominee then has 30 days to form a government and seek a confidence vote.

In January, the Coordination Framework nominated former Prime Minister Nouri al-Maliki for the post. The move drew criticism from U.S. President Donald Trump, who warned Washington would "no longer help Iraq" if al-Maliki returned to power. Al-Maliki dismissed the remarks as "blatant U.S. interference" and a violation of Iraqi sovereignty.

Under Iraq's post-2003 power-sharing system, the presidency is held by a Kurd, the parliamentary speaker by a Sunni Muslim, and the prime minister by a Shiite Muslim.