Final answer:
Partisanship has affected the confirmation process under both Barack Obama and Donald Trump by causing obstacles, delays, and increased polarization.
Step-by-step explanation:
Partisanship has had a significant impact on the confirmation process under both Barack Obama and Donald Trump. In both administrations, the Senate's control by a different political party than the president's led to increased political bic_kering and obstruction.
For example, during the Obama administration, Republican resistance and an increase in filibusters resulted in political gridlock and delayed confirmation of judicial nominations. Similarly, under the Trump administration, the Senate confirmed his nominees while Republicans were in control. The confirmation process became intensely partisan during the nomination of Brett Kavanaugh, with sharp divisions and accusations of partisanship.
Overall, partisanship has affected the confirmation process by creating obstacles, delays, and increased polarization.