evidence: President Joe Biden's top economic advisor on Friday laid out plans for the country's looming debate over trillions in expiring tax breaks enacted by former President Donald Trump. [...] Renewing Biden's pledge for "tax fairness," she said the administration aims to extend expiring TCJA provisions for middle-class Americans. Those extensions would be funded by raising taxes on the ultra-wealthy and corporations. [...] The administration also wants to quadruple the tax on stock buybacks and add a 25% minimum income tax for billionaires, Brainard said.