OTTAWA—The House of Commons is poised to break today for the summer—and possibly for an election—after giving eleventh-hour approval to what the minority Liberal government considers its priority legislation. But it’s far from certain the Senate will be as accommodating. Three priority bills have landed in the Senate over the past couple of days and a fourth is expected to arrive later today in the upper house, where some senators are balking at the prospect of rushing them through at lightning speed. The Senate is scheduled to wrap up today as well and it would take unanimous consent to extend the sitting in its current hybrid format, adopted to allow for virtual participation during the COVID-19 pandemic. Senate committees have already conducted pre-studies of two of the four bills—C-30, the budget implementation bill, and C-12, which would set targets for achieving net zero carbon emissions by 2050—so they’re likely to …