The tone of the Trump administration is proving to be more populist protectionism than big business friendly, especially for the tech sector. Those who thought that a Trump government would lead to further deal-making, think again. The “America First” agenda, which calls for the protection of “American people and consumers” with an emphasis on key domestic industries, is leading to an aggressive posture toward antitrust enforcement from the Department of Justice (DoJ). This was the case for the recent $14 billion HPE-Juniper tie-up, which was approved unconditionally by the EU, but looked likely to fall through in the US when the DoJ sued to block the move in February. The deal has since been approved with certain remediations, such as…