Sinema, who for more than a year has blocked Democratic tax-hike ambitions, raised objections Saturday, according to two people with knowledge of the matter, who spoke on condition of anonymity to discuss private talks. The senator argued that without changes to the bill, small and medium-sized businesses that happen to be owned by private equity firms would be exposed to the tax, breaking a Democratic pledge to raise taxes only on the largest companies. A Sinema spokeswoman said several small Arizona businesses, including a nursery, had expressed concerns.
