Frexed

A 100 casualties is a pretty severe attack, it's possible only if an attack is carried out either on a congregation of people or over a large area. The first seems unlikely... Strategically, attacking the capital of Ukraine serves several purposes: boosting morale, diversion of resources, distraction of attention... These are more easily served by low intensity harassing rather than a targeted bombardment. Therefore it's unlikely that such severe attack would occur.

A more interesting question would have been whether the western nations will provide an equivalent to Israel's iron dome to Ukraine. If the intensity of the war increased to levels where such attacks where occuring, it would likely lead to greater support to Ukraine from the western nations.

It has already happened.

Based on @ctsats comment with the email from Prof. Abel Méndez,

It seems certain that the house of representatives will vote on this bill. The bill will pass as it has bipartisan support.

The speaker of the house intends to schedule a vote on the modified aid bill this Saturday. The bill is supported by the president, so should pass with democratic support if it comes to the floor. 

The US abstained on the vote regarding the ceasefire agreement.

(Correcting previous fat finger error)

The US abstained on the security council vote regarding the ceasefire.