GOP Senators Propose New Covid Package

The GOP proposed a counter to President Biden's $1.9 trillion package, suggesting a $600 billion plan focusing on relief checks for individuals earning $50,000 or less and families under $100,000, along with $160 billion for vaccines and PPE. Senator Bill Cassidy supports the proposal, while Senator Bernie Sanders is open to compromise but stresses urgent action. If Democrats back a compromise, the bill could pass the Senate's 60-vote threshold.

What did Senator Bernie Sanders express willingness to do regarding the proposal?

What is the significance of reaching a 60 vote threshold in the Senate?