General Motors Co. said second-quarter net income fell 35 percent to $1.9 billion after U.S. tariffs on foreign-made vehicles and parts erased $1.1 billion from the bottom line. Adjusted earnings of $2.53 a share topped analysts’ $2.33 consensus but were down from $3.06 a year earlier. Revenue slipped 2 percent to $47.1 billion and core profit dropped 32 percent to about $3 billion. The stock sank roughly 7.7 percent in New York trading. The Detroit automaker warned the tariff burden will intensify in the third quarter and reiterated that levies could trim $4 billion to $5 billion from 2025 earnings. Even so, GM maintained its full-year adjusted earnings forecast of $8.25 to $10 a share and an adjusted EBIT range of $10 billion to $12.5 billion. Chief Executive Officer Mary Barra said the company is investing $4 billion to expand U.S. production of pickups and SUVs, a move it expects will offset about 30 percent of its tariff exposure while meeting still-robust domestic demand.