Paris is bracing for a fresh surge of street unrest today, with tens of thousands of demonstrators expected as France’s heavyweight trade unions join high school students demanding better conditions in protests that have increasingly spilled into confrontations with police. PARIS — Tens of thousands of demonstrators are expected on the streets of Paris on Tuesday as France’s powerful trade unions join high school students rallying for better conditions in a wave of protests marked by clashes with police. Key points and original sources are listed below.

• Paris is bracing for a fresh surge of street unrest today, with tens of thousands of demonstrators expected as France’s heavyweight trade unions join high school students demanding better conditions in protests that have increasingly spilled into confrontation...S1

• PARIS — Tens of thousands of demonstrators are expected on the streets of Paris on Tuesday as France’s powerful trade unions join high school students rallying for better conditions in a wave of protests marked by clashes with police. Students have blocked the...S2