By Oliver Griffin and Ana Mano SAO PAULO (Reuters) - Global agricultural machinery manufacturer Deere & Co.'s sales in Brazil could fall by a single-digit percentage in 2026 amid global uncertainties related to U.S. President Donald Trump's tariffs and high interest rates in the South American country, an executive said on Thursday. "Today, a positive scenario would be (like) 2025, but (sales are) likely to decline," Antonio Carrere, vice president of sales and marketing at the company's Brazil unit, tol ...