Catherine Cortez Masto

The provided articles do not directly mention Catherine Cortez Masto. Therefore, I cannot provide a summary of her based on these articles. The articles discuss deportations under the Trump administration and a potential funding block by Senate Democrats related to the Department of Homeland Security. Without specific information about Cortez Masto's involvement or stance on these issues within the provided context, any summary would be speculative and not based on the given source material. To provide an accurate summary, articles directly referencing her actions, statements, or involvement in these events would be necessary.