Democratic front-runner for President Joe Biden appeared at the University of Dubuque today (Friday) and said he thinks President Trump made a big mistake ordering a for a U.S. airstrike near Baghdad’s airport that killed its top general. Biden says Iran has already vowed “harsh retaliation”. Biden says the killing of General Soleimani marks a major escalation in the standoff between Washington and Iran. Biden also criticized the administrations lack of a plan once the U.S. pulled out of the nuclear treaty. American defense officials said today nearly 3,000 more Army troops heading to Mideast in wake of US killing of Iranian general. Biden was introduced by Dubuque Congresswoman Abby Finkenauer, who officially endorsed Biden Thursday.