A rail strike is looming and the impact on the U.S. economy could be broad. President Joe Biden is calling on Congress to pass legislation to intervene and block a railroad strike before next month's deadline. Four rail unions that represent more than half of the 115,000 workers in the industry have rejected the current deals. Business groups said even a short term strike would have a tremendous impact on business and could cause economic pain across the country. 8 other rail unions have ratified their deals that include 24% raises and $5000 in bonuses. The four unions still negotiating say the deals did not resolve workers concerns about demanding schedules and