Grandpa

Abortion rights organizations declared their opposition to Roberts, a 50-year-old federal appeals court judge. But as yet, there were no outright calls for his rejection from any of the Senate's 44 Democrats.

"I urge the Senate to rise to the occasion, provide a fair and civil process and to have Judge Roberts in place before the next court sessions begins on October the third," said President Bush, the morning after he tapped the Harvard-educated lawyer with a sterling resume and impeccable conservative credentials.

If confirmed, Roberts would replace retiring Justice Sandra Day O'Connor on the court. She has frequently been a swing vote in recent years on issues ranging from abortion to affirmative action and states rights.

That made Roberts' nomination a potential political flash point in the Senate and beyond.

Sen. Arlen Specter of Pennsylvania, Republican chairman of the Judiciary Committee, said hearing would begin in late August or more likely early September.

"And I can assure you that the hearings will be full, fair and complete," he told reporters in the Capitol.

Roberts had breakfast with Bush at the White House, but did not speak to reporters. He saved his talking for later in the day, when the White House scheduled the first in a series of "courtesy calls" on senators who will ultimately decide whether he takes his place on the high court.

His first stop was in the office of Majority Leader Bill Frist of Tennessee, who has pledged to meet Bush's goal of completing the confirmation proceedings before the court's new term begins on October 3.

Roberts also had a meeting with Senate Minority Leader Harry Reid on his schedule.

Bush's pick "has had an impressive legal career" and other fine qualities, the Nevada lawmaker said in remarks on the Senate floor during the day.

But, he added, "they do not automatically qualify John Roberts to serve on the highest court of the land."

He said senators "must be convinced that the nominee will respect constitutional principles and protect the constitutional rights of all Americans."

Abortion surfaced quickly as a point of contention.

A liberal organization, NARAL-Pro Choice America, announced its opposition to Roberts even before Bush formally made his selection public in a prime time televised White House appearance on Tuesday. The group planned an "emergency demonstration" against the nomination across the street from the Capitol at midday.

On the other side of the political equation, Progress For America, a conservative organization, called a news conference to announce a television commercial to begin running soon. The group, which coordinates its efforts with presidential aides, pledged in advance to spend at least $18 million on advertising and grass roots activities to buttress the confirmation prospects of whomever Bush chose.

Abortion, a polarizing issue for lawmakers, will be the "hot button" issue in the confirmation battle, conceded Fred Thompson, the former senator who will shepherd the nomination through the Senate.

At the same time, he cautioned against reading too much into Roberts'