DEBATE-ANALYSIS : LAS VEGAS - The Democratic presidential candidates staged their toughest and noisiest debate of the campaign Wednesday night, firing at one another with an intensity that underscored a growing sense that their nomination contest has entered what could be a decisive moment.

The top-polling Democratic presidential candidates spent their campaign money at a rapid clip in the final three months of 2019, and they each entered 2020 with less than one-fifth of the money he or she had raised all year, according to financial reports filed Friday night.