Ah yes, the man that likes to spend other people's money.
Congress may have different ideas and it is THEY that control the money, not Biden.
IF Biden does manage to send them ( a single missile costs around $850,000 ) and the Ukrainians escalate the war by attacking targets in Russia it may come back to haunt him, when the war escalates to the use of nukes.
https://kyivindependent.com/ukraine-comes-close-to-getting-atacms-how-will-it-change-the-war/
The White House also cited concerns over limited U.S. stockpiles of ATACMS and unnecessary escalation with Moscow in case they would be used to attack Russian territory among the reasons to reject Ukraine’s bid for the coveted missiles.
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According to Borsari, other issues explaining the hesitancy could be the ATACMS cost-effectiveness per round, with a single missile costing around $850,000 compared to just $160,000 for a GMLRS rocket