Starbucks and Union Escalate Legal Battle Over Controversial Tweet

Starbucks sued union for trademark infringement over "Solidarity with Palestine!" tweet that damaged company's reputation.

Union fired back with lawsuit claiming Starbucks defamed them by linking them to "terrorism, hate and violence."

Controversial tweet was up for 40 minutes before being deleted, but screenshots circulated.

Starbucks sought to distance itself from union's views, saying they don't represent the company.

Tensions escalating between Starbucks and union representing 9,000 workers demanding higher wages.